Impeller type pump



sepnzz, 1964 l Filed July 5l, 1962 F. KRAlssl., JR IMPELLERTYPE PUMP 2 Sheets-Sheet'l IN VENTOR. f/Ff/WFA KAM/55A Je.

A fram/:75

Sept. 22, 1964 Filed July 3l, 1962 F. KRAISSL, JR

IMPELLER TYPE PUMP 2 Sheets-Sheet 2 INVENTOR. Muff/6A KIM/554.@

4 Wok/V575 United States Patent O 3,149,575 IMPELLER TYPE PUMP Frederick Kraissl, Jr., 244 Kinderkamack Road, North Hackensack, NJ. Filed July 31, 1962, Ser. No. 213,647 Claims. (Cl. 10S- 118) The present invention is directed to pumps and more particularly to an impeller type of pump.

lt is among the objects of the invention to provide a compact arrangement of pump, motor and oil reservoir which is highly eicient in operation.

It is also among the objects of the invention to devise a structure in which the motor and pump may be separated without the necessity of disassembling the pump unit.

lt is further among the objects of the invention to provide an oil reservoir on a pump which may be readily removed and the position thereof adjusted, and which embodies a sight glass for convenient visual observation of the amount of available lubricant.

It is still further among the objects of the invention to provide a tripod type of stand which is attached to both the reservoir and motor to stabilize the pump unit.

The invention is more fully described in connection with the accompanying drawing constituting a part hereof, and in which like reference characters indicate like par-ts, and in which FIG. 1 is a front elevational view of the pump structure of the present invention;

FIG. 2 is a vertical longitudinal cross-sectional view thereof, some parts being shown in elevation, and

FlG. 3 is a transverse cross-sectional view taken along line 3 3 of FIG. 2.

FiG. 4 is a transverse cross-sectional view showing a blade type impeller.

The frame consists of a pair of spaced legs 1 and 2 integral with motor ring 3 at one end and with pump ring 4 at the other end. Ribs 5 and 6 extend transversely and outwardly from legs 1 and 2 respectively, to bear the stresses imposed on the elements. Motor 7 is mounted on ring 3 by bolts S. Pump body 9 is secured to ring 4 by bolts or the like, not shown. End plate 10 is held on body Si by bolts 11. Pump shaft 12 extends through boss 13 into space 14 between legs 1 and 2, terminating at 15. Motor shaft 16 extends into the space 14 and terminates at 17. Separable coupling 18 unites ends 15 and 17. Due to the width of space 14, ready access is had to coupling 18 for repair, replacement or disassembly of the unit into its elements.

Boss 13 provides a bearing for one end of shaft 12. Gland 19 is inserted into a opening 20 in the boss and bears against packing 21. It is held in position by bolts 22. impeller 23 is xed onto shaft 12. An intake 24 is provided for fluid to be pumped and an outlet 25 allows the exit of iiuid under pressure.

On lower flange 26 of pump body 9 is mounted lubricant reservoir 27 by bolts 28 which are equally spaced around the periphery of flange 26. Thereby the position of reservoir 28 and sight glass 29 may be adjusted. End disk 30 is held by bolt 31 in boss 32 of spider 33. Fill plug 34 on seat 35 provides means for filling the reservoir. Oil filler 36 has tube 37 extending into the area of impeller 23.

Extension 38 on the side of reservoir 27 has a central opening into which stem 39 of rubber mount 40 is pressed.

t, 3,149,575 Patented Sept. 22., 1964 ice This mount constitutes one foot of the support for the structure. A support on motor 7 has bracket 41 which carries cap screw 42, the stem of which terminates at 43 and carries rubber foot 44. Lock nut 45 retains foot 44 in position. Similarly foot 44" is held on bracket 41. If desired, brackets 41 and 41' may be extended rearwardly and a second pair of feet 44-44 be provided to cooperate with button 40 to give a three-point support; only one foot 44 may be provided on brackets 41 and their extensions.

Standpipe 46 extending from reservoir 27 is connected to cap 47 through threaded sleeve 48. The cap has several threaded openings for reception of fittings as desired. For instance, a gage 49 may be carried in cap 47, and a relief valve 5t) may be carried in said cap. The standpipe and associated elements reduce to a minimum the carry-over of entrained oil from reservoir 27. Outlet 51 allows the compressed gases to flow from the pump.

impeller 23 of the pump has peripheral recesses 52 in which are fitted rollers 53, the impeller being mounted eccentrically in the pump body and adapted to rotate in the direction of arrow 54. The compressed gases pass downwardly through channel 55, over oil in reservoir 27, through standpipe 46, and then through exit pipe 56. The roller-type impeller may be replaced by any suitable type of rotor, such as the blade type,

ln FIG. 4 there is shown at a@ such a blade type of im peller. In the claims the term impeller is intended to apply to the actuator Aof a pump orcompressor of any suitable type, such as those shown and described herein.

What is claimed is:

1. A pump comprising a pump body, an open frame extending laterally from said body, a driving motor attached to the end of said frame, an impellers in said body, =a shaft on which said impeller is mounted, said shaft extending to a central portion of said frame, a motor shaft in alinement with said impeller shaft extending to a point adjacent to said impeller shaft, a separable coupling attached to the adjacent ends of said shafts, an oil reservoir below said impeller and detachably secured to the lower end of said body, and at least three support feet, one being on said reservoir and the others being on said motor, the top of said reservoir being attached to the lower end of said body by equally spaced bolts arranged in a circle and vertically placed, whereby to permit shifting said reservoir into one of a plurality of operative positions.

2. A pump comprising a pump body, an open frame extending laterally from said body, a driving motor attached to the end of said frame, an impeller in said body, a shaft on which said impeller is mounted, said shaft extending to a central portion of said frame, a motor shaft in alinement with said impeller shaft extending to a point adjacent to said impeller shaft, a separable coupling attached to the adjacent ends .of said shafts, an oil reservoir below said impeller and detachably secured to the lower end of said body, and at least three support feet, one being on said reservoir and the others being on said motor, the diameter of said pump being substantially less than the diameter of said motor, a pair of vertically alined diametrically opposed legs in said frame and converging from said motor to said pump, the width of said reservoir being about equal to the diameter of said motor, and a sight glass on the side of said reservoir extending laterally from and communicating with the bottom of said reservoir.

3. A pump according to claim 2 characterized in that said sight glass extends under said legs.

3 4. A pump according to claim 2 characterized in that a standpipe on one end of said reservoir extends adjacent to said pump body, the top of said standpipe being not above said motor, the outer edge of said standpipe being in line with the vertical plane at the corresponding end of 5 the motor diameter, whereby the width ofthe motor is approximately the same as the entire pump structure.

5. A pump according to claim 2 characterized in that the motor has two feet, each being located below the ends of the horizontal diameter of said motor, whereby the 10 vibratory eiects of motor rotation are minimized.

References Cited in the file of this patent UNITED STATES PATENTS Vernon Dec. 23, 1913 Grier Sept, 11, 1934 Mann Feb. 20, 1940 Sadler, et al Jan. 31, 1956 Maisch Sept. 25, 1956 Zimmermann et al Apr. 8, 1958 Goehring Sept. 8, 1959 

1. A PUMP COMPRISING A PUMP BODY, AN OPEN FRAME EXTENDING LATERALLY FROM SAID BODY, A DRIVING MOTOR ATTACHED TO THE END OF SAID FRAME, AN IMPELLERS IN SAID BODY, A SHAFT ON WHICH SAID IMPELLER IS MOUNTED, SAID SHAFT EXTENDING TO A CENTRAL PORTION OF SAID FRAME, A MOTOR SHAFT IN ALINEMENT WITH SAID IMPELLER SHAFT EXTENDING TO A POINT ADJACENT TO SAID IMPELLER SHAFT, A SEPARABLE COUPLING ATTACHED TO THE ADJACENT ENDS OF SAID SHAFTS, AN OIL RESERVOIR BELOW SAID IMPELLER AND DETACHABLY SECURED TO THE LOWER END OF SAID BODY, AND AT LEAST THREE SUPPORT FEET, ONE BEING ON SAID RESERVOIR AND THE OTHERS BEING ON SAID MOTOR, THE TOP OF SAID RESERVOIR BEING ATTACHED TO THE LOWER END OF SAID BODY BY EQUALLY SPACED BOLTS ARRANGED IN A CIRCLE AND VERTICALLY PLACED, WHEREBY TO PERMIT SHIFTING SAID RESERVOIR INTO ONE OF A PLURALITY OF OPERATIVE POSITIONS. 